AJAX 意外令牌/未终止的字符串文字

Question

我正在使用的页面是：http://glenwoodia.com/business-directory

我在使分页功能正常工作时遇到问题。当您单击其中一个数字（顶部的 1 2 3 4 5 6 7）时，它应该会动态拉出该组业务并将其显示在页面上。但是，在 Google Chrome 中我得到一个“意外令牌非法”错误，在 firefox / IE 中我得到一个“未终止的字符串文字”错误。

在我看来，我必须处理 AJAX 的特定 PHP 代码应该处理任何可能导致问题的流氓字符：

    $listings = trim(strip_tags(str_replace("'","\'",stripslashes(bizdir_directory("",@$v["offset"])))));
    $response = "clearMessage();
        document.getElementById('bizdir_directory').innerHTML = '{$listings}';
    ";

有什么想法吗？

Answer 1

使用 json_encode() 而不是那些丑陋的 str_replaces —— 它负责编码几乎所有在 JavaScript 中无效的内容：

<script type="text/javascript">
var a = <?php echo json_encode("single quote ', double quote \", new
lines"); ?>;
</script>

输出：

<script type="text/javascript">
var a = "single quote ', double quote \", new\r\nlines";
</script>

我觉得你的代码可以这样写：

$listings = json_encode(trim(bizdir_directory("", $v["offset"])));
// #1: note that json_encode does not trim the input string
$response = "
    clearMessage();
    document.getElementById('bizdir_directory').innerHTML = {$listings};
"; // #2: note that {$listings} is not enclosed inside quotes

Answer 2

$response = "clearMessage();";
$response .= "document.getElementById('bizdir_directory').innerHTML = '{$listings}';";

Answer 3

只是一个随机问题，但应该：

'{$listings}'

不是

{$listings}

相反？没有单引号？我假设正在返回格式正确的 JSON 代码 - 很抱歉没有机会查看您提供的 URL - 我可能在这里偏离了标记；）

Answer 4

点击链接时的响应是 JavaScript，即eval()'d

它是设置一个元素的 innerHTML 而不用引号括起来。您只需要引用该值，例如：

"clearMessage();document.getElementById('bizdir_directory').innerHTML = 'foo bar'"

而不是

"clearMessage();document.getElementById('bizdir_directory').innerHTML = foo bar"

单击第 2 页时我得到的响应是

"clearMessage();document.getElementById('bizdir_directory').innerHTML = Pages:  1  2  3  4  5  6  7Central Realty, LLCVickie Gerdes / Greg Patterson331 West Thornton Ave.St. Louis, MO 63119314-862-5557gerdesv@central-realty.comReal Estate / Rental Property.Chat Mobility - EmersonTerry Gray404 HowlandP.O. Box 289Emerson, Iowa 515331-800-944-5526http://www.chatmobility.comtgray@chatmobility.comCommunication.Chat Mobility - GlenwoodSandy Dornburgh906 South Locust StreetGlenwood, Iowa 51534712-527-3020http://www.chatmobility.comsdornburgh@chatmobility.comCommunication.City of GlenwoodBrian Kissel107 South Locust StreetGlenwood, Iowa 51534712-527-4717city.hall@mchsi.comGovernment.Classic Cafe, LLCAlicia Bartley315 Main StreetMalvern, Iowa 51551712-624-8082http://www.classiccafeandcatering.combartleya14@hotmail.comRestaurant/Catering.Cohron Ready Mix, LLCSteve McCraken10001 192nd StreetCouncil Bluffs, Iowa 51503712-527-4696Concrete Company.Common Ground MinistryJon McNeel113 Center StreetGlenwood, Iowa 51534402-525-9642jmcneel@cqmglenwood.orgMinistry, youth group.Country TireTom Collinson611 South Hazel StreetGlenwood, Iowa 51534712-527-3621http://www.countrytire.biz/glenwoodfirestone.htmglenwoodfirestone@yahoo.comAutomotive Repair.Crash and BurnsCandice Burns1002 Lincoln StreetMalvern, Iowa 51551402-679-6927cburns.computer.repair@gmail.comComputer repair.Croatt Heating & Air Conditioning, LLCMathew and Jodi Croatt23203 Kane Ave.Glenwood, Iowa 51534712-527-3455croatthvac@gmail.comFull service heating and air conditioning.Crouch, Richard & BarbCrouch, Richard & Barb59629 280th StreetMalvern, Iowa 51551712-524-8933Crobertson@millscoia.usIndividuals.Culligan Water ConditioningGlenn Robinson / Bill Cunard113 South 9th StreetP.O. 445Missouri Valley, Iowa 51555712-642-2695http://www.culligan.comglennculligan@yahoo.comWater conditioning.Davies AmphitheaterGordon & Lori Woodrow301 North WalnutGlenwood, Iowa 51534712-527-3545http://www.glenwoodnet.com/daviesg.woodrow@mchsi.comRecreation.Davis, Dick & JudyDavis, Dick & Judy1007 4th StreetGlenwood, Iowa 51534712-527-9527rrjjdavis@gmail.comIndividuals.DeShawne Bird-Sell PLC Attorney At LawDeShawne Bird-Sell417 Sharp SteetGlenwood, Iowa 51534712-527-4026deshawne@aol.comLaw firm.Don's FurnitureDon Malcom419 Sharp StreetGlenwood, Iowa 51534712-527-4809setterrw@aol.comRetail.Dr. Barry JoseDr. Barry Jose1601 Ave. DGlenwood, Iowa 51534712-323-5213Individuals.Dr. Robert FryzekDr. Robert Fryzek14 North WalnutGlenwood, Iowa 51534712-527-9135Medical, general family practice.Edward JonesRon Hanson908 South Locust StreetGlenwood, Iowa 51534712-527-3520http://www.edwardjones.comron.hanson@edwardjones.comInvestment Planning/Investing.El Portel Mexican RestaurantMartin Barajas612 Locust StreetGlenwood, Iowa 51534712-527-4014Restaurants.Embray, DevinEmbray, Devin103 CentralGlenwood, Iowa 51534712-527-9034Individuals.Evans Equipment Company, E.E.C., IncorporatedJeff & Michelle Evans1305 South Locust StreetGlenwood, Iowa 51534712-527-1440http://www.evansrental.comRental equipment.Exclusive PaintingJamie & Stephanie Todd25880 Noyes Ave.Glenwood, Iowa 51534402-740-9099Painting Service.Farm Bureau Insurance & Financial ServicesJohn Gregory302 South Locust StreetGlenwood, Iowa 51534712-527-3153http://www.agentjohngregory.comInsurance and financial services.Feed EnergyJoe Liddick / Paul Knockel20159 Kelting Ave.P.O. Box 130Pacific Junction, Iowa 51561712-655-8293http://www.feedenergy.comIndustries.FFG Consulting, LLCMark FordP.O. Box 529Glenwood, Iowa 51534712-309-6336http://www.FFGroupConsulting.comConsulting.First National BankDoug Meggison102 South Locust StreetGlenwood, Iowa 51534712-527-3171dmeggison@fnni.comBanks / Financial.Five Star Quality Care, Inc.Nate Parks114 East GreenGlenwood, Iowa 51534712-527-4841http://www.5sqc.comnparks@5sqc.comHuman Services.Fountains Ballroom, Inc.Marty & Erin Williams51496 - 230th StreetGlenwood, Iowa 51534712-526-2030http://www.thefountainsballroom.comWeddings, conferences, special occasions, photography and catering.Garden TreasuresRyan & Connie Bichel22309 221st StreetGlenwood, Iowa 51534712-527-3602http://www.ryansgardentreasures.comryan.bichel@yahoo.comFull service Garden Center, statuary, birdbathes, benches, fountains, landscape supplies, mulch, rock, sand, soil and so much more.Pages:  1  2  3  4  5  6  7;"

您可以在其中看到缺少的引号。